Click Phone System Manager, then Auto-Attendant, under the eVoice header. The Auto-Attendant Menu(s) page appears.

Under Auto-Attendants to the left, select the auto-attendant that has the sub-attendant you want to access.

In the display pane, click the small triangle next to the applicable sub-attendant (the row expands); then to:

Change an extension:

Click its Edit button (the Edit Extension pane appears), and change its number and/or name.

Click Next. A confirmation appears, asking if you want to update the sub-attendant's greeting (so you can direct callers to the sub-attendant extension name/number you just changed. IMPORTANT! Ideally, the greeting should list all extensions so that callers can reach who they needs.).

If Yes, the Edit Sub-Attendant dialog box appears. (To update the sub-attendant's current greetings text with the extension's updated name/number, see the second bullet under step 3. of "Change an Auto-Attendant's Business greeting" in Change an Auto-Attendant's Business/After-Hours Greeting(s).)

If No, the sub-attendant extension's uupdated information appears in the sub-attendant's Extensions list but is not mentioned in the its current greeting.

Call the sub-attendant to confirm that its greeting and extensions are recorded correctly. (If a professionally recorded greeting, will take a few days.)

Remove an extension: Click its X button; then Yes, to confirm its deletion. You are now asked if you want to update the sub-attendant's greeting (to remove mention of the extension).

If No, the sub-attendant extension no longer appears in the sub-attendant's Extensions list but is still mentioned in its greeting.